Association between Rheumatoid Arthritis and Respiratory Allergic Diseases in Korean Adults: A Propensity Score Matched Case-Control Study

Table 3

Stratified PS matched conditional logistic regression of prevalence of RA.

	Number of events		95% CI	value		95% CI	value
No respiratory allergic disease		REF			REF
Allergic rhinitis	20	1.37	(0.98–1.90)	0.064	1.39	(1.16–1.67)	<0.001
Asthma	11	2.81	(2.60–3.05)	<0.001	3.12	(2.77–3.51)	<0.001
Allergic rhinitis without asthma	18	1.07	(0.75–1.51)	0.720	1.03	(0.83–1.28)	0.773
Asthma without allergic rhinitis	9	1.87	(1.72–2.03)	<0.001	1.92	(1.72–2.14)	<0.001

Adjusted for sex, age, household income, cigarette smoking, alcohol drinking, occupation, obesity, BMI, and diabetes mellitus; , crude OR; , adjusted OR; CI, confidence interval.